Authors’ contributions
Qiang Xiong and Ming-man Zhang conceived the study and is the principal investigator. Qiang Xiong and Ming-man Zhang initially designed the study protocol. Ming-man Zhang coordinated the doctors and nurses. At the same time, Qiang Xiong, Ruijue Wang, Xiaoke Dai, Yingcun Li and Ming-man Zhang mainly provided clinical support and lead surgery. Li Xiao and Ruijue Wang contributed to subsequent amendments to the study protocol. Qiang Xiong and Ruijue Wang wrote the first draft of this manuscript. Ruijue Wang and Li Xiao revised this manuscript. All authors contributed to subsequent drafts and approved the final manuscript.